Saw-swaging hammer



Aug. 9, 1927,` 1,638,632 l J. HAssELBERc;

SAW SWAGING HAMMER Filed Dec. 14. 1925 ATTY lllllllllllllllllllllll Yso *rammed Aug. 9, 1927.

miese *i fr JnNsHAssELBEitefor SACEM/Lauro; YCALIFnaiv/ridi. f

' sAw-sWAeiNG HAMMER. Y

Application filed December 14,.1 925.. "Serial Naf-75,3418; A i. l

v My invention relates toV improvements in a tool for use by saw filers wherein ahammer is providedwitha swaging portion for use in expanding and Vshaping the raker teeth of saws. f My present vinvention ,isv particularly directed to anfimprovedftool to bensedin-I saw-s ofthe 'setting and v'shaping the teeth lof type used in cutting timber. VAs is vr,well known in the art. saws of this type` must vbefkept sharp and the teeth mustfbe accurately setand shaped to meet'theparticular requirements 'of Ythe. Vtype of timber being cut. Such saws are commonly provided with cut-ting teeth set Aand sharpened to cut the.'V

timber by means of sharpened points. .Between adjacent groups vof cutting teeth are provided what are knownv as rakergteeth.'

The `raker teeth are provided with `square edges arranged at substantially right an-v gles to the` cut of the saw and terminating 4just back of the points oflthe cutting teeth.` These raker teetli,f.-,as is well known',V cut away the wood fiber between the points of the cutting teeth, and carry the displaced wood outwardly from theeut.v The shapy ing of these rakerjteeth plays" an extremely importantpart inthe efiiciency of the saw,

which the raker teeth; may be quicklyv and Ulf which may be conveniently and '.,shaping the yrakerV teetliof saws'.

l' as hereinaftermore fully described, and the vprimary object of my invention isto pro-.

vide an improved tool which vwill-facilitate the accurate shapingofat-he rakerl teeth of sawsfz.

.Another object lto Aprovide an improved Y toolwhichy will both expand and/shape the.

raker teeth of saws. A further obj ect is to provide an improved toolof the character 'described ,which will reduce the timefand labor necessary for `re'- A nother object is to provide a device'` by accuratelyshaped without drawing thetemper .ffrom. tliel teeth and without danger :of

breaking the teeth Vor injuring theisaw. 1..

A furtherI object is ;t0 :provide a; device to a teeth to be shaped.`

lA further obJectris-,to provide vasingleimprovedtool ywhich 'can be used for all or. dinary purposes infsetting and shaping the' is and for swagingthe cutter f" teeth Vof ysa A still further obJectis to provide an improvedtool` which' can be economically fentlr held in Aaccurate j operative `'position V"relative timber and the like. r Y.

manufactured and which may be effectively( temperedgor'casel hardened for use upon/*the erence'. arel usedito designateisimilar ,parts throughout, saidspecification vand drawings and` ln; n .f Y

Fig;A 1; is-Ia broken fronty elevation off-a"` i portion of a saw shoWlIlgthe.manneriin whichmy improved tool is applied for swag- 1- f "701v .Fig 2 isa viewtaken at right angles'to ing a raker tooth thereof. g f

Fig. v1, `rthesaw. blade being. shown insee-. i

Referring .tothedrawillgS,- the numeral l is used to 4designate in ,gener'ahA thjebodyY y portionl of my Y improved sawv .'fllerls hammer- One end of the bodyl isslightlytape-red'to; forml a striking element Qjof the formicom.l Y monly ,provided in hammers forsettingthe teetliof saws.VA `The opposite en dofl the body l is provided 'withanextension- 3y of reduced thickness-,to forma aV swaging-'portionf AV pair offarcuate surfacesiy are formed. uponftheyouter end of the jextension, said surfaces being angularly disposed `and arranged to meet at a central. pointed apexi.

-The`body I -hasan eye formed .thereinto receivea 'handle 7. y

A' lguide,l 8 ispreferably provided i jupon" one *side 'of the'swaging fportion, sfa'id f guide extending pastthe pointed; apex Gand. Y forming afac'e at right angles tothe edges of the;I faces 4.'

ing` surfaces 4L ifdesired.

he gui l'eg'Spreferzablyconsistsiof l plate securedupon, onesidelof the.s w'aging.A '5 portion 3-by means-ofsc rews orothr suits able securing means whereby'the platenmayg j be removed-'to permit reshaping ofthe-swag@ 'faref-curved- "and-inclined yinj'a-.' mannerlp' adap tedtojdefine,thedesired` shape. tobe*` given fte, the ,l ends; fofraker1 teeth, A`90f a' y VCOSscut Saw'lief-thetypeneed-incutting-' Inoperationthe tool is usedfor'fswaging;,

thel raker-teeth 9ofa :sawin'thefollowing.V Y. manner. The tool is placed in position upon the top ofa y iakertooth as shown iiiFig.l

110 Vvby, means ofthe handle 7 and heldv with the guide Siat against A,the back of theftooth-Q, t

1 ofthe'drawings,the.toel 'being gripped thereby insuringth-at the surfaces 4 Will be held squareyvith the supper surfaces of the tooth. ...The handlei Vis preferably 'gripped close to the body l ofthe tool so that the' forenger of the operator `y'vill engage the Y adjacent surface of the saw and tooth and act as a guide upon the" near side of the say'v I V' and tool and -to steady the '.toll vupon ythe t'gotln` The upper end 2 of the tool isfnov struck-With a hammer or other suitable tool,

l thereby drivingthe' syvagingsurfac'es onto l Y "the edge of thetoo'th and 'causing the points be expanded outwardly and shaped to onfoiun to the ci'irvature `of `the yfaces 4j The teeth-e ie ewageazeufeienay te auge j the' raker eeth-f to -belslightl'y' shorter than the" cut 'te'ethvlgofjthe' savv. the vsar-hetiinef, "the aruatelsurfac'es :cause ythe points to be turned outwardly,y with a regular and iiniform'cuvatu'eg This is impor,-

Qtantl aslthe p iop'er, shaping` of the ends of f the falter teeth .'clufs 'Said teeth to bite into thewood as the savv is reciprocatefd, thereby Yo'btainiiiigtV clancut tliro'ugli the ber and z attheY same vtime tending' to hold 'the sav against the back of Athe cut.` Calibrations lt'arefpreferably fornied'upon the face of the extensionfrealongi the-edges ofthe sur-l p fac`s' 4, said; vc'alijln'a tions' operating 'to form av -gagejwhereby lthe' teeth 9 may bie svt/aged ",juniforfnly thrgughut thejlengthof the saw.

The inclinationw and 'c'rvature'of-the sur-i Y permitsV ity'to be usedl'much longer Wjitl'ion-t Arestarpentage "The simplicity effects .a tlg y saving in' time and labor'nec'es'sary for? swag# fing the 'ra-ker teeth.

fc- ;hardenedto'avoid anymafringr ofthe faces iaga'inst'the hardened inaterialfofthe Sense )The striking `poi-tion 2 'and` the 1 waging g portiony S ofthe vtoolV areboth temperedor `save; 'If necessary the guide'f'S may be' rel movedjand the'temper dra/vm fdr the" lumi-v 1 mrtofpermit the surfacest to be l'iled'ftoa :desired Shape# Y l Asidefrm the hara-ni inthe ordinary* mannen for setting V .the-euttinggteeth '12" 'of they-saying 4ters Patent is,

y y aeein waging the rake; teeth "of the saw as" above egq'a'lainled,k the .l p Vto the tooth.k 1' 'portion 2 may-'belused Yasa`r setting"v In witness' whereof I. he'eunt set my mas HAssELBERf-t 5 bile I have illustrated andfd'escribed what I consider toV be lthe preferred form and construction of my improved tool, Athe device is subject to modilication in numerous Ways Without departing` from the spirit 0f myinvention. I therefore do notwish to restrict myself to the specific details of construction shown and'described but desire to avail myself of any modifications which mayffall Wit-hin the scope of therappendeol Y claims;` Y Y Having thus ldescribed invention what I claimas new and desire to Senne by Let:

vof

i LA saw sw'vaginghammer comprising a K hotly` portion having anfeye adapted to re,-V

'e'eive a' handle; and a .'s'wvaging 'portionV formed upon one end .of the'l body and con;` :gistingof an Y'eidzensionI of reducedthlokness having anf g'ularly` disposed arcuate' surfaces formed upon the' end thereof, sa'id surfaees f bei g adapted tof 'expand land 'shape the' Yends of rraler teeth of saws fand a guide adj acent one edge of the lswagg portion te- Y the backpo'f atooth;

` 2. A saw waging 'hammergegmprising' a f b'ody 'having an eye'adapted to receive a' handle, one end of said bodyfibeing slightly tapered to form a striking' el'ei'r'ier'it';v swagf iii-gl portion forine'dnponthe oppositeend of thebody said portion bein-AQ; ofr'educed thick? ness andv having" angularly disposed arcuate surfaces Aformed'upon the outer end ther'c-eofy said surfaces intersecting at a'cenufalL apex and being` adapted torexpand and yslfia'pe the i outer ends ofv raker teeth offsaws; and a i guide adjaeent one side ofthe swagfing por-` tion `toengage the back of, atooth. Y

3; vA saw jsv'vag'ing hammer comprising a body having an eye adaptedfto receive a handle, one end ofsaid body'being slightly tapered to form a strikingelement; a swag-i mg portion forinedupon the oppositee'nd lof th'e b'ody'saicl portion'beiiigof reduced thick Vness and 'having angularly disposed arcuate surfaces formed upon theo'utei end thereof, said surfaces lntjersectmgfat La central apex 105 and being" adapted to expand andshape the outer .ends o'f'raler Vteeth of saws; and a: i

guide detachably securedA upon one sideV of the swaging' portion to'lengage the'bao'k `etV a tooth tg facilitate the placingfandholding of the" hammer in operativefposition relativeV signature. 

